[rc-bridge] Incr Backup Fixes #2

[Enjection]

• Switch incremental backup cdc mode back to Update (Switch incremental backup cdc mode back to Update #24271)
• Remove usage of __async_repl attr from incr backup impl (Remove usage of __async_repl attr from incr backup impl #24425)
• Fix REPLACE INTO handling in incremental backup (Fix REPLACE INTO handling in incremental backup #24427)

Changelog entry

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Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

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[github-actions]

⚪ 2025-09-09 14:08:36 UTC Pre-commit check linux-x86_64-release-asan for b427012 has started.
⚪ 2025-09-09 14:10:11 UTC Artifacts will be uploaded here
⚪ 2025-09-09 14:14:37 UTC ya make is running...
🔴 2025-09-09 17:12:11 UTC Too many tests failed, NOT going to retry
🟡 2025-09-09 17:24:45 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
16986	16053	0	519	374	40

🟢 2025-09-09 17:26:17 UTC Build successful.

[github-actions]

⚪ 2025-09-09 14:50:43 UTC Pre-commit check linux-x86_64-relwithdebinfo for b427012 has started.
⚪ 2025-09-09 14:50:47 UTC Artifacts will be uploaded here
⚪ 2025-09-09 14:54:34 UTC ya make is running...
🟡 2025-09-09 16:45:40 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
39651	36903	0	3	2710	35

⚪ 2025-09-09 16:49:09 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-09-09 17:03:54 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
257 (only retried tests)	231	0	0	1	25

🟢 2025-09-09 17:04:02 UTC Build successful.